KR950024611A - Speaker with magnetic circuit - Google Patents

Speaker with magnetic circuit Download PDF

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Publication number
KR950024611A
KR950024611A KR1019940033673A KR19940033673A KR950024611A KR 950024611 A KR950024611 A KR 950024611A KR 1019940033673 A KR1019940033673 A KR 1019940033673A KR 19940033673 A KR19940033673 A KR 19940033673A KR 950024611 A KR950024611 A KR 950024611A
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KR
South Korea
Prior art keywords
ring
shaped
magnetic
magnet
shaped magnet
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KR1019940033673A
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Korean (ko)
Inventor
아끼라 다나베
노브오 가끼누마
시게끼 다께이
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구쯔자와 겐따로우
알파인 가부시끼 가이샤
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Publication of KR950024611A publication Critical patent/KR950024611A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/021—Reduction of eddy currents in the magnetic circuit of electrodynamic loudspeaker transducer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Abstract

(목적) 스피커의 음성의 왜곡을 저감합과 동시에 경량화, 고내식성을 도모할 수 있는 스피커를 제공한다. (구성) 대략 공기모양의 프레임(11)의 저부의 볼록부(12)에는 링모양 소프트페라이트코어(13)의 내주면(131)이 감합되고, 또한, 접착고정되어 있다. 또, 프레임(11)의 오목부(114)의 내주부에는 링모양 본드자석(14)의 외주면이 감합되고, 또한 접착고정되어 있기 때문에 이 링모양 본드자석(14)의 상하단부의 내주면과 링모양 소프트페라이트코어(13)의 외주면(152,153)사이에 2개 의 자기갭(152,153)이 형성되고, 이 자기갭(152,153)에 보이스코일(162,163)이 각 삽입배치되어있다.(Purpose) Provides a speaker that can reduce the distortion of sound of a speaker and at the same time reduce weight and provide high corrosion resistance. (Configuration) The inner circumferential surface 131 of the ring-shaped soft ferrite core 13 is fitted to the convex portion 12 of the bottom of the substantially air-shaped frame 11 and is fixed by adhesion. In addition, since the outer circumferential surface of the ring-shaped bond magnet 14 is fitted to the inner circumferential portion of the concave portion 114 of the frame 11 and is fixed by adhesion, the inner circumferential surface of the upper and lower ends of the ring-shaped bond magnet 14 and the ring are fixed. Two magnetic gaps 152, 153 are formed between the outer circumferential surfaces 152, 153 of the shape soft ferrite core 13, and voice coils 162, 163 are inserted into the magnetic gaps 152, 153, respectively.

Description

자기회로를 구비한 스피커Speaker with magnetic circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 조립한 실시예1의 스피커의 종단면도,1 is a longitudinal sectional view of the speaker of the assembled first embodiment of the present invention,

제2도는 본 발명의 조립한 실시예2의 스피커의 종단면도,2 is a longitudinal sectional view of the speaker of the assembled second embodiment of the present invention;

제3도는 본 발명의 조립한 실시예3의 스피커의 종단면도,3 is a longitudinal sectional view of the speaker of the assembled third embodiment of the present invention;

제4도는 본 발명의 조립한 실시예4의 스피커의 종단면도.4 is a longitudinal sectional view of the speaker of the assembled fourth embodiment of the present invention.

Claims (17)

프레임과, 상기 프레임내에 배치되는 진동판과;상기 진동판에 접속되는 대략 통상의 보빈과;상기 보빈에 감겨져 자기회로의 자기갭내에 삽입되는 보이스코일을 가지는 스피커에 있어서, 링모양 자석과, 상기 링모양 자석과 동축상에 배치되는 링모양 자성체로 상기 자기회로가 구성되어 상기 링모양 자석의 주위면과 상기 링모양 자성체의 주위면 사이에 상기 자기갭이 형성되어 있고, 적어도 상기 링모양 자성체의 상기 자기갭 형성면이 페라이트코어로 형성되어 있는 것을 특징으로 하는 스피커.A speaker having a frame, a diaphragm disposed within the frame; a substantially ordinary bobbin connected to the diaphragm; and a voice coil wound around the bobbin and inserted into a magnetic gap of a magnetic circuit, the speaker comprising: a ring-shaped magnet and the ring-shaped The magnetic circuit is constituted by a ring-shaped magnetic body disposed coaxially with a magnet such that the magnetic gap is formed between the peripheral surface of the ring-shaped magnet and the peripheral surface of the ring-shaped magnetic body, and at least the magnetic field of the ring-shaped magnetic body. A speaker, wherein the gap formation surface is formed of a ferrite core. 제1항에 있어서, 상기 자기갭이 축방향으로 복수 형성되어 있음과 동시에 이들의 각 자기갭에 삽입되는 복수의 보이스코일이 설치되고, 각각의 보이스코일이 받는 힘이 동일방향이 되도록 각 보이스코일에 흐르는 전류방향을 규정한 것을 특징으로 하는 스피커.2. The voice coils according to claim 1, wherein a plurality of the magnetic gaps are formed in the axial direction and a plurality of voice coils inserted into the magnetic gaps are provided, and the respective voice coils are provided in the same direction. A speaker characterized by defining a current direction flowing in the. 제1항에 있어서, 상기 링모양 자성체는 상기 링모양 자석보다도 소경이고. 상기 링모양 자성체의 외주면과 상기 링모양 자석의 내주면 사이에 상기 자기갭이 형성되어 있고, 또한, 상기 링모양 자성체의 내주면은 상기 드레임의 내저부의 중앙에 설치된 블록부에 감합되고, 상기 링모양 자석의 외주면은 상기 프레임의 내저부의 상기 블록부의 외측에 설치된 오목부에 감합되어 있는 것을 특징으로 하는 스피커.The said ring-shaped magnetic body is a smaller diameter than the said ring-shaped magnet. The magnetic gap is formed between the outer circumferential surface of the ring-shaped magnetic body and the inner circumferential surface of the ring-shaped magnet, and the inner circumferential surface of the ring-shaped magnetic body is fitted to a block portion provided at the center of the inner bottom of the drain, and the ring-shaped An outer circumferential surface of the magnet is fitted to a concave portion provided outside the block portion of the inner bottom portion of the frame. 제1항에 있어서, 상기 링모양 자성체는 상기 링모양 자석보다도 대경이고, 상기 링모양 자성체의 내주면과 상기 링모양 자석의 외주면 사이에 상기 자기갭이 형성되어 있고, 또한, 상기 링모양 자석의 내주면은 상기 프레임의 내저부의 중앙에 설치된 블록부에 감합되고 상기 링모양 자성체의 외주면은 상기 프레임의 내저부의 상기 블록부의 외측에 설치된 오복부에 감합되어 있는 것을 특징으로 하는 스피커.The ring-shaped magnetic body is larger in diameter than the ring-shaped magnet, the magnetic gap is formed between the inner circumferential surface of the ring-shaped magnetic body and the outer circumferential surface of the ring-shaped magnet, and the inner circumferential surface of the ring-shaped magnet Is fitted to a block portion provided in the center of the inner bottom portion of the frame, and an outer circumferential surface of the ring-shaped magnetic material is fitted to a five-fold portion provided outside the block portion of the inner bottom portion of the frame. 제1항에 있어서, 상기 링모양 자석은 희토류금속자석분말을 함유하는 본드자석인 것을 특징으로 하는 스피커.The speaker according to claim 1, wherein the ring-shaped magnet is a bond magnet containing rare earth metal magnetic powder. 제1항에 있어서, 상기 링모양 자석은 링모양 페라이트코어와, 이 링모양 페라이트코어의 양단부에 배치되는 링모양 자석이 일체화되어 형성되어 있는 것을 특징으로 하는 스피커.The speaker according to claim 1, wherein the ring-shaped magnet is formed by integrating a ring-shaped ferrite core and ring-shaped magnets disposed at both ends of the ring-shaped ferrite core. 제1항에 있어서, 상기 링모양 자석은 링모양 자석과, 이 링모양 자석의 양단부에 배치되는 링모양 페라이트코어가 일체화되어 형성되어 있는 것을 특징으로 하는 스피커.2. The speaker according to claim 1, wherein the ring-shaped magnet is formed by integrating a ring-shaped magnet and ring-shaped ferrite cores disposed at both ends of the ring-shaped magnet. 프레임과, 상기 프레임의 내저부의 중앙에 설치되는 블록부와, 상기 프레임의 내저부의 블록부의 외측에 설치되는 오목부와, 상기 프레임내애 배치되는 진둥판과;상기 진동판에 접속되는 대략 통상의 보빈과;상기 보빈에 감겨져 자기회로의 자기갭내에 삽입되는 보이스코 일을 가지는 스피커에 있어서, 상기 블록부 또는 오목부중 어느 한쪽에 감합되는 링모양 자석과, 상기 블록부 또는 오목부중 다른 한쪽에 감합되는 링모양 자성체로 상기 자기회로가 구성되어 상기 링모양 자석의 주위면과 상가 링모양 자성체의 주위면 사이에 상기 자기갭이 형성되어 있고, 적어도 상기 링모양 자성체의 상기 자기갭 형성면이 패라이트코어로 형성되어 있는 것을 특징으로 하는 스퍼커.A frame, a block portion provided at the center of the inner bottom portion of the frame, a concave portion provided outside the block portion at the inner bottom portion of the frame, and a penetrating plate disposed in the frame; a generally normal connected to the diaphragm; A speaker having a voice coil wound around the bobbin and inserted into a magnetic gap of a magnetic circuit, the speaker comprising: a ring-shaped magnet fitted to either one of the block portion and the recessed portion, and the other of the block portion or the recessed portion. The magnetic circuit is formed of a ring-shaped magnetic body, and the magnetic gap is formed between the peripheral surface of the ring-shaped magnet and the peripheral ring-shaped magnetic body, and at least the magnetic gap-forming surface of the ring-shaped magnetic body is a ferrite core. Sputter is characterized in that formed. 제8항에 있어서, 상기 자기갭이 축방향으로 복수 형성되어 있음과 동시에 이들의 각 자기갭에 삽입되는 복수의 보이스코일이 설치되고, 각각의 보이스코일이 받는 힘이 동일방향이 되도록 각 보이스코일에 흐르는 전류방향을 규정한 것을 특징으로 하는 스피커.9. The voice coil according to claim 8, wherein a plurality of the magnetic gaps are formed in the axial direction and a plurality of voice coils inserted into each of the magnetic gaps are provided, and the respective voice coils are provided in the same direction. A speaker characterized by defining a current direction flowing in the. 제8항에 있어서, 상기 링모양 자석은 희토류금속자석분말을 함유하는 본드자석인 것을 특징으로 하는 스피커.9. The speaker according to claim 8, wherein the ring-shaped magnet is a bond magnet containing rare earth metal magnetic powder. 제8항에 있어서, 상기 링모양 자석은, 링모양 페라이트코어와, 이 링모양 페라이트코어의 양단부모에 배치되는 링모양 자석이 일체화되어 형성되어 있는 것을 특징으로 하는 스피커.The speaker according to claim 8, wherein the ring-shaped magnet is formed by integrating a ring-shaped ferrite core and ring-shaped magnets disposed at both ends of the ring-shaped ferrite core. 제8항에 있어서, 상기 링모양 자석은, 링모양 자석과, 이 링모양 자석의 양단부에 배치되는 링모양 페라이트코어가 일체화되어 형성되어 있는 것을 특징으로 하는 스피커.The speaker according to claim 8, wherein the ring-shaped magnet is formed by integrating a ring-shaped magnet and ring-shaped ferrite cores disposed at both ends of the ring-shaped magnet. 프레임과, 상기 프레임의 내저부의 중앙에 설치되는 목록부와, 상기 프레임의 내저부의 볼록부의 외측에 실치되는 오목부와, 상기 프레임내에 배치되는 진동판과;상기 진동판에 접속되는 대략 통상의 보빈과;상기 보빈에 감겨져 자기회로의 자기갭내에 삽입되는 보이스코일을 가지는 스피커에 있어서, 상기 볼록부 또는 오목부중 어느 한쪽에 감합되는 링모양 자석과, 상기 볼록부 또는 오목부중 다른쪽에 감합되는 링모양 페라이트코어로 상기 자기회로가 구성되어 상기 링모양 자석의 주위면과 상기 링모양 페라이트 코어의 주위면 사이에 자기갭이 형성되어 있는 것을 특징으로 하는 스피커.A frame, a catalog portion provided at the center of the inner bottom of the frame, a recess mounted on the outside of the convex portion of the inner bottom of the frame, a diaphragm disposed in the frame; an approximately ordinary bobbin connected to the vibrating plate And a voice coil wound around the bobbin and inserted into a magnetic gap of a magnetic circuit, comprising: a ring-shaped magnet fitted to one of the convex portions or concave portions, and a ring shape fitted to the other of the convex portions or concave portions; And a magnetic gap formed between a peripheral surface of the ring-shaped magnet and a peripheral surface of the ring-shaped ferrite core. 제l3항에 있어서, 상기 자기갭이 축방향으로 복수 형성되어 있음과 동시에 이들의 각 자기갭에 삽입되는 복수의 보이스코일이 설치되고, 각각의 보이스코일이 받는 힘이 동일방향이 되도록 각 보이스 코일에 흐르는 전류방향을 규정한 것을 특징으로 하는 스피커.The voice coil of claim 13, wherein a plurality of the magnetic gaps are formed in the axial direction and a plurality of voice coils inserted into the respective magnetic gaps are provided, and the respective voice coils are provided in the same direction. A speaker characterized by defining a current direction flowing in the. 제13항에 있어서, 상기 링모양 자석은 희토류금속자석분말을 함유하는 본드자석인 것을 특징으로 하는 스피커.The speaker according to claim 13, wherein the ring-shaped magnet is a bond magnet containing rare earth metal magnetic powder. 제13항에 있어서, 상기 링모양 자석은, 링모양 페라이트코어와, 상기 링모양 페라이트코어의 양단부에 배치되는 링모양 자석이 일체화되어 형성되어 있는 것을 특징으로 하는 스피커.The speaker according to claim 13, wherein the ring-shaped magnet is formed by integrating a ring-shaped ferrite core and ring-shaped magnets disposed at both ends of the ring-shaped ferrite core. 제13항에 있어서, 상기 링모양 자석은, 링모양 자석과 상기 링모양 자석의 양단부에 배치되는 링모양 페라이트코어가 일체화되어 형성되어 있는 것을 특징으로 하는 스피커.The speaker according to claim 13, wherein the ring-shaped magnet is formed by integrating a ring-shaped magnet and ring-shaped ferrite cores disposed at both ends of the ring-shaped magnet. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940033673A 1994-01-05 1994-12-12 Speaker with magnetic circuit KR950024611A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13894 1994-01-05
JP94-000138 1994-01-05

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KR950024611A true KR950024611A (en) 1995-08-21

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US (1) US5715324A (en)
JP (1) JP3323345B2 (en)
KR (1) KR950024611A (en)
CN (1) CN1041486C (en)

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KR20040017173A (en) * 2002-08-20 2004-02-26 엘지전자 주식회사 Speaker apparatus
KR101305368B1 (en) * 2012-01-20 2013-09-11 송혜영 Speaker capable of being driven without a magnet

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CA2304765C (en) * 1998-07-21 2007-10-02 Jbl Incorporated Miniature full range loudspeaker
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Also Published As

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JP3323345B2 (en) 2002-09-09
CN1121300A (en) 1996-04-24
JPH07240995A (en) 1995-09-12
CN1041486C (en) 1998-12-30
US5715324A (en) 1998-02-03

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